Real nth Root
Compute the real n-th root of real numbers.
nthroot(x, n)
x |
numeric vector or matrix |
n |
positive integer specifying the exponent 1/n. |
Computes the n-th root real numbers of a numeric vector x,
while x^(1/n) will return NaN for negative numbers,
even in case n is odd. If some numbers in x are negative,
n must be odd. (This is different in Octave)
Returns a numeric vector of solutions to x^{1/n}.
nthroot(c(1, -2, 3), 3) #=> 1.000000 -1.259921 1.442250 (-2)^(1/3) #=> NaN
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.